7232 Aircraft engine mechanics and fitters  

N/A

(ก) ความต้องการด้านทักษะ

N/A

(ข) ความต้องการด้านความรู้

N/A

(a) Performance Evidence

      Evidence required to demonstrate competency in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria underthe specified conditions of assessment, and must include:

• Interpreting damage limits and identifying applicable repair schemes.

• Interpreting all requirements of modification drawings and assessing work against them.

• Evaluating completed minor repairs and modifications for compliance with the applicable data and with airworthiness requirements.

• Recognising weld defects.

• Performing colour contrast dye penetrant NDT to confirm defects in applicable aircraft components.

• Application of relevant WHS practices, including the use of MSDS and PPE. The underlying skills inherent in this unit should be transferable across a range of repair and modification applications related to the structure of aircraft. It is essential that the repair and modification procedures take into account all applicable safety precautions. The ability to interpret repair scheme and modification requirements, including applicable specifications (allowable limits) and ensure that they are applied in practice is critical. This must be demonstrated through the correct determination of repair requirements and the determination of compliance with repair schemes and modification drawings. The ability to assess sound weld minor repairs must also be demonstrated.

(b) Knowledge Evidence

      Evidence required to demonstrate competency in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include basic knowledge at a post-trade level of:

• Application of regulatory requirements and of manufacturer’s requirements in the determination of structural maintenance needs.

• Assessment of the extent of damage and an understanding of the need for a professional engineer to develop or extend a repair scheme where damage is beyond the limits of maintenance manual repair schemes, including the identification of relevant personnel and authorities.

• Assessment of new equipment or component mounting requirements and an understanding of the need to have drawings and specifications developed by a professional engineer, including the identification of relevant personnel and authorities

• The need for shoring and support to maintain aerodynamic shape and for safe performance of structural maintenance.

• The need for mensuration checks and the techniques used to perform them.

• How to determine welding requirements and the recognition of sound welds.

• The correct application of colour contrast dye penetrant NDT and the limitations of the testing method.

• Dye penetrant test procedures:

• Relevant WHS precautions and how to obtain PPE and MSDS.

• Cleaning and preparation processes and materials.

• Consequences of incorrect preparation.

• Basic concepts and principles of NDT and appropriate use of the colour contrast dye penetrant technique.

• General properties of penetrants (penetrability, removability and visibility).

• Types of emulsifiers and developers.

• Established procedures and techniques.

• Defect types and their consequences.

• Post-test cleaning methods.

• Aircraft welding regulations.

• Aircraft welding processes and relevant parent metal groups.

• Defects applicable to each welding process and parent metal group.

    This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included. 

Range of tasks and practices includes:     

- Standard practices for structural repair and modification, including damage measurement and assessment against approved repair schemes. 

- The process for referral of damage details and modification requirements to relevant personnel/authorities. 

- Supervision of repair scheme and modification incorporation, including evaluation of work against drawings and specifications. 

- Scheduled or unscheduled maintenance. 

-  Individual activities or supervision of other personnel performing maintenance tasks classified in CASR part 145 as specialist maintenance, including: 

- Non-destructive inspection. 

- Welding. 

- Surface plating. 

- Surface finishing. 

- Preparing structural repair components. 

- Machining. 

Surface preparation for dye penetrant NDT includes:     

- Removal of surface finishes where applicable. 

- Thorough cleaning of the surface. 

- Drying of the surface. 

- Processes included in standard procedures. 

Dye penetrant materials include:     

- Appropriate surface cleaning materials. 

- Emulsifiers. 

- Developers. 

- Materials for surface cleaning after testing.

Procedures and requirements include:     

- Industry standard procedures specified by manufacturers, regulatory authorities or the enterprise.

•    The assessment are based on combination of paper exams, interviewing, and practical demonstrations depending on the assessors’ judgement.

•    Competency will be assessed in the training environment using a combination of practical exercises and scenarios. Applicable work plans should take account of applicable safety (including safe handling of heavy components) and quality requirements in accordance with the industry and regulatory standards.

•    A person cannot be assessed as competent until it can be demonstrated to the satisfaction of the workplace assessor that the elements and performance criteria of the unit of competency are being achieved across the tasks and practices listed in the Range of Conditions under supervision without intervention.